Compound dies



March 19, 1929. M, KAPLAN Er ALI 1,705,924

COMPOUND DIES Filed sept.r 17, 1927` 2 sheets-sneu` 1A I I I 22 22 I (9. o l wg I @MXN J7 I l L .Z6

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E; 24l Z3 Z4 IN1/E Tons ATTORNEY Patented Mar.' 19, 1929.

narran STATES eArsNr oFsFree.

` MAX KAPDANAND DAVID TALNOPER, or NnwYon'K, n. y.

CoivrPoUND DIns. v

Application med septemberiv, 1927. serian No. 220,110.

This invention relates to press tools and more particularly to hand operated compound dies used in the formation of circular sheet metal structures in which a plate or like article is enframed or a double walled.

saucer' shaped object formed.

The,l object of the invention is to provide a novel and practical arrangement o f dies accompanying; drawings', forming aneces sary part of this disclosure,and in which Figure l is a top plan view of a conventional type of a hand operati-ve bench press as' arranged for the `final or infolding operation. 1 l

Figure 2 is a front elevationalview of the same.

Figure' 3 is a view similar to Figure 1. but showing one of the dies outturned, as duringr the `firstoperation.'V y

Figure L is a front elevational view ofthe device shown in Figure 3.

Figure 5 is a side el vational view of the press and parts in position for final o.p.

eration. Figure G is a fragmentary sectional view, showing' the operative parts in position to accomplish the first operation.

FigureA 7 is a` similar view of the same but in position to perform the second and inal operation. y

Figure 8 is a fragmentary sectional view showing` anv article to be formed, as shaped during the first operation. .f

Figure 9 is a similar view ofthe samecompleted.

Referring more in detail to the drawings, the numeral 15 is used to generally designate the base of a conventional typeof handlever operable press., the same being provided vwith openings, whereby it may be bolted to a bench or other suitable foundation.

Rising` from the rear of the'baseis a column 16, preferably of Tshape`d cross section the upper portion of the same being baseV 23. f

curved toward the front and' provided with anelengated vvertical guideA sleeve head 17, generally rof circular cross section, and hav ing at' its central portion opposed extending. horizontal hubs 18 bored to receive a spindle 19, one 'en'd being enlarged and fitted with a lever QOprovide'd with a handle atits end.

Midway between the hubs 18, a spur gear l isforme'dv on the spindle, the same engaging with the raclfteeth of a plunger 22 op'erably mounted inthe press head 17, these parts being common and ofi Well known conf4 l struction Fixed on thel levelled central upper side of the press base l5 is a disc-like base 23 from which rises a circular block 24having a `conve-arly curved top 25 finished to suit the inner surface; of the work part and act as the lower die duringtheI first operation in.assembling` the object'.

Movably engaged on the peripheral surface of the die block 24 is aring 26having an expanded upper portion- 27, the same presenting; a distinct shoulder seat 26 toA rest upon the uppercoil of a' helical compression spring 28, in turn seated upon the die block Inv the upper en d of the ring enlargement 27 is an innerr annular recess 27 circumj'aeent the die block 24,..the recesshaving'a bevelled-outer wall andI being suited to.y receive and act as a-seat for a corresponding annular projection 29 vextending' from the under side of a die' p'lateBO. Y

The plate 3() has a circularopening 30',

its diameter'being in excess of the die block 24C to an `amount equal tothe `combinedthick-nessof the parts to 'be form`ed, and integral with the die plate;y on its upper side, is an annulus'l.

An upperdie 32 is slidablein the die plate openingA 30 to' an amount controlledby a screw 33 in theannulus 31, acting as a-'key and. engaging a slot in the lupper die 32, as can be seen in Figures 6 1 and 7, preventing relative rotation but permitting limited linea-l movement.. Y

A flange 34, equivalent' in diameter to ducedcollar 3T providedwith a set screw to engage the plunger 22, vwhich is tightly y fitted in an axial opening` 36 in the upper die, causing, it .to move as aunit with the plunger, and the lower surface 35 is concavely curved to suit the, correspon ing upper face 25 of the bottone4v die.

Extending laterally from the plate die are lugs 38 and 39, respectively right and left hand, the former being` bored to 'freely receive a spindle 40 capable of limited longitudinal movement and rotatable therein, the spindle having a collar 41 equal in length to the height of the annulus 3l.

Bigidly fixed on the collar 4l is a spacing block 42 having a curved edge 42 shaped at a radius equal to the diameter of the upper die 32 and capable ot being swung thereagainst when the block is interposed between the top of the annulus 3l and under side of the flange 34.

Rigidly fixed to the lower end of the spindle 40 is a circular plate 44 carrying on its lower side an intermediate die holder 45 capable of being swung into axial registration with the dies 24 and 32, the plate 44 having a stop pin 46 to engage in the bottom ot a recess 47 in the die plate lug 39.

In the top ol"y the die holder 45 is an anular recess 48 corresponding in all respects to the recess 27 and like it beingl capable of receiving the annular projection 29, when the die holder 45 is moved into operative position; it is to be noted that the inner edge 48 of this recess is bevelled, as best seen in Figure 7.

Extending downward from the die holder 45 is an annular projection 49, the same being an exact counterpart of the projection 29 and like it suited to enter and rest upon "f the seat 27 of the ring 26.

Fitted to move in the opening 43 of the die holder is a circular die 50 having a flat level upper face 5l and a concave lower face 52 corresponding to the die block face 25 on which it is seated when in operative position, as best seen in Figure 7.

An air passage 53 of small diameter passes through the die 5() and in its edge is a ley slot 54 to receive the point oi a screw 55 reaching through the wall ot the holder.

In Figures 8 and 9 enlarged partial views ol? the work comprising a small conventional pocket mirror are shown, the same consisting, ttor illustration` only, ot a circular metal plate a previously given a concave shape and provided with a depending flange W9.

rlhe outer transparent cover c of celluloid overlies a paper sheet d, such as a photographic print, and all are to be crimped to firmly hold a flange e formed on a frame ring 7 which supports an object, such as a mirror 'q.

In operation the upper die 32 and plate 3() are raised by the handle 2() and the intermediate die 50 with its holder 45 turned outwardly, causing the distance block 42 to enter below the fiange 34 and contact with the die 32, the plate 30 being moved by gravity to its lowermost position.

Thereupon the metal plate a 1s placed on the surface of the recess 27 the ring 26 being raised by the spring 23 above the top of the bottom die 24, and the paper and celluloid discs disposed over the metal, their edge being guided by the bevelled wall of the recess, care being .taken to centraline the plate a so ity will register with the tace 25 of the bottom die. Y

Upon actuation of the handle 20 the upper die 32 is forced downwardly, together with the plate die 30, through the intermediary otI the block 42, curling the parts e and d at their edges about the flange o olf part at- On moving the lever 2O in the opposite di-` rection, the die 32 is raised and also the plate die 30, bringing up the plate and crimped discs a, c and d, the same adhering within the plate die opening 30.

lithout removing these parts the mirror g, in its frame eLJf, is laid on the level surface of the intermediary die 50 to extend thereabove and the saine swung `on the axis of the pivot 40, over the bottom die 24, until the stop pin 46 has reached its limit in the recess 47, this movement obviously clearing the block 42 from under the flange 34.

Upon actuating the lever 2O to force the die 32 downwardly the crimped flanges of the paper and Celluloid y,discs are entered over the trame flange e and the bevelled wall 43 of the recess 48 produces a further inreaching crimping effect of the parts b, c and d, causing them to engage the frame flange e and form the article shown in Figure 9.

The article thus formed rests on thesur tace ot the intermediate die 50 which, after the upper dies have been raised, may be swung outwardly and the finished article removed ready for use. y

From the foregoing it will be apparent that novel and practical compound die has been disclosed easily capable of producing a wide range of articles similar innature to that illustrated and composed of a plurality of parts whereby ornamental and useful objects are readily made.

It is to be understood that various changes and modifications may be resorted to, such as are well within the ability of a mechanic Y to produce, without departing from the general scope oit the appended claims.

Having thus described our invention, what we claim as new and desire to secure byflietters Patent, is i 1. Ina hand press, a fixedV lower die, a

work receiving ring normally spring raised above said die, an upper die fixed on the plunger of said press, a plate die slidably mounted on the upper die and having lateral extensions, an intermedate die having a pivot rotatable in one of said extensions, said intermediate die being movable into position between the upper and lower dies, and a Y press plunger, a plate die limitedly slidable eircumjacent the upper die andhaving a part to engage said ring, a lateral lug on said plate die having a pivot movably mounted therein, a die holdercarried by said pivot,

said die holder being registerable with said.

plate die and ring, and a die carried by said holder to register' with said upper and lower dies when in one position and to be swung beyond their contines when in another position. Y

3. In a hand press, a iXed lower die, a work receiving ring normally spring raised above said die, an upper dieiiXed on the press plunger, a platev die limitedly slidable cireumjacent the upper die and having a part to engage said ring, opposed lugs on the sides ot' said plate die, one ot said lugs having a pivot rotatably lmounted therein, a die holder carried by 'said pivot, an intermediate die loatingly supported by said holder and eapable of registration with said upper die, and a distance block carried by the upper end of said pivot to enter between aportion of said upper die and said plate die when they intermediate die is turned outwardly on its pivot.

4. The combination in a hand presshaving an upper and a lower die, of va work receiving ring on said lower die, said ring being normally spring raised, a plate die slidable on the upper die, afiange on said upper die to exert pressure on said plate die when performing one operation, and a block movv York and State of New York, this of September, 1927. p

able into intercepting position between the llange and plate die when performing another operation, said plate die having a part to engage said ring when the block is in operative position.

5. The combination in a hand press having an upper and a lower die, et a flange on said upper die, a plate die keyed to slide on the upper die, an intermediate diepivoted to swing below said upper die, a block actuated by the intermediate die when in an inoperative position to interpose said iiange and plate die and when in operative position to permit direct contact therebetween.

6. The combination with a press having upper and lower dies carried respectively by the plunger and base of the press, of a pair oi outer dies slidable respectively on the upper and lower dies, means for normally raising the lower outer die, inner and outer dies pivoted to said outer upper die during one operation, and a block actuated by said swinging-die to interpose between the inner vand outer upper dies during' another operation.

7. The combination with a press having compound upper and lower dies, a block pivoted in the outer element of the upper die to maintain the inner'and outer elements in adjustment for one operation, and a compound auxiliary die associated with said block to enter between the compound upper l kand lower dies during the second operation.

Signed at NewYork, in the city of New 13th day MAX KAPLAN. DAVID TALNOPER. 

